gnupg/mpi/longlong.h

/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
   Note: I added some stuff for use with g10

Copyright (C) 1991, 1992, 1993, 1994, 1996 Free Software Foundation, Inc.

This file is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version.

This file is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
License for more details.

You should have received a copy of the GNU Library General Public License
along with this file; see the file COPYING.LIB.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
MA 02111-1307, USA. */

/* You have to define the following before including this file:

   UWtype -- An unsigned type, default type for operations (typically a "word")
   UHWtype -- An unsigned type, at least half the size of UWtype.
   UDWtype -- An unsigned type, at least twice as large a UWtype
   W_TYPE_SIZE -- size in bits of UWtype

   SItype, USItype -- Signed and unsigned 32 bit types.
   DItype, UDItype -- Signed and unsigned 64 bit types.

   On a 32 bit machine UWtype should typically be USItype;
   on a 64 bit machine, UWtype should typically be UDItype.
*/

#define __BITS4 (W_TYPE_SIZE / 4)
#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
#define __ll_lowpart(t) ((UWtype) (t) & (__ll_B - 1))
#define __ll_highpart(t) ((UWtype) (t) >> (W_TYPE_SIZE / 2))

/* This is used to make sure no undesirable sharing between different libraries
   that use this file takes place.  */
#ifndef __MPN
#define __MPN(x) __##x
#endif

/* Define auxiliary asm macros.

   1) umul_ppmm(high_prod, low_prod, multipler, multiplicand) multiplies two
   UWtype integers MULTIPLER and MULTIPLICAND, and generates a two UWtype
   word product in HIGH_PROD and LOW_PROD.

   2) __umulsidi3(a,b) multiplies two UWtype integers A and B, and returns a
   UDWtype product.  This is just a variant of umul_ppmm.

   3) udiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
   denominator) divides a UDWtype, composed by the UWtype integers
   HIGH_NUMERATOR and LOW_NUMERATOR, by DENOMINATOR and places the quotient
   in QUOTIENT and the remainder in REMAINDER.	HIGH_NUMERATOR must be less
   than DENOMINATOR for correct operation.  If, in addition, the most
   significant bit of DENOMINATOR must be 1, then the pre-processor symbol
   UDIV_NEEDS_NORMALIZATION is defined to 1.

   4) sdiv_qrnnd(quotient, remainder, high_numerator, low_numerator,
   denominator).  Like udiv_qrnnd but the numbers are signed.  The quotient
   is rounded towards 0.

   5) count_leading_zeros(count, x) counts the number of zero-bits from the
   msb to the first non-zero bit in the UWtype X.  This is the number of
   steps X needs to be shifted left to set the msb.  Undefined for X == 0,
   unless the symbol COUNT_LEADING_ZEROS_0 is defined to some value.

   6) count_trailing_zeros(count, x) like count_leading_zeros, but counts
   from the least significant end.

   7) add_ssaaaa(high_sum, low_sum, high_addend_1, low_addend_1,
   high_addend_2, low_addend_2) adds two UWtype integers, composed by
   HIGH_ADDEND_1 and LOW_ADDEND_1, and HIGH_ADDEND_2 and LOW_ADDEND_2
   respectively.  The result is placed in HIGH_SUM and LOW_SUM.  Overflow
   (i.e. carry out) is not stored anywhere, and is lost.

   8) sub_ddmmss(high_difference, low_difference, high_minuend, low_minuend,
   high_subtrahend, low_subtrahend) subtracts two two-word UWtype integers,
   composed by HIGH_MINUEND_1 and LOW_MINUEND_1, and HIGH_SUBTRAHEND_2 and
   LOW_SUBTRAHEND_2 respectively.  The result is placed in HIGH_DIFFERENCE
   and LOW_DIFFERENCE.	Overflow (i.e. carry out) is not stored anywhere,
   and is lost.

   If any of these macros are left undefined for a particular CPU,
   C macros are used.  */

/* The CPUs come in alphabetical order below.

   Please add support for more CPUs here, or improve the current support
   for the CPUs below!	*/

#if defined (__GNUC__) && !defined (NO_ASM)

/* We sometimes need to clobber "cc" with gcc2, but that would not be
   understood by gcc1.	Use cpp to avoid major code duplication.  */
#if __GNUC__ < 2
#define __CLOBBER_CC
#define __AND_CLOBBER_CC
#else /* __GNUC__ >= 2 */
#define __CLOBBER_CC : "cc"
#define __AND_CLOBBER_CC , "cc"
#endif /* __GNUC__ < 2 */


/***************************************
 **************  A29K  *****************
 ***************************************/
#if (defined (__a29k__) || defined (_AM29K)) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("add %1,%4,%5
	addc %0,%2,%3"                                                  \
	   : "=r" ((USItype)(sh)),                                      \
	    "=&r" ((USItype)(sl))                                       \
	   : "%r" ((USItype)(ah)),                                      \
	     "rI" ((USItype)(bh)),                                      \
	     "%r" ((USItype)(al)),                                      \
	     "rI" ((USItype)(bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("sub %1,%4,%5
	subc %0,%2,%3"                                                  \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "r" ((USItype)(ah)),                                       \
	     "rI" ((USItype)(bh)),                                      \
	     "r" ((USItype)(al)),                                       \
	     "rI" ((USItype)(bl)))
#define umul_ppmm(xh, xl, m0, m1) \
  do {									\
    USItype __m0 = (m0), __m1 = (m1);					\
    __asm__ ("multiplu %0,%1,%2"                                        \
	     : "=r" ((USItype)(xl))                                     \
	     : "r" (__m0),                                              \
	       "r" (__m1));                                             \
    __asm__ ("multmu %0,%1,%2"                                          \
	     : "=r" ((USItype)(xh))                                     \
	     : "r" (__m0),                                              \
	       "r" (__m1));                                             \
  } while (0)
#define udiv_qrnnd(q, r, n1, n0, d) \
  __asm__ ("dividu %0,%3,%4"                                            \
	   : "=r" ((USItype)(q)),                                       \
	     "=q" ((USItype)(r))                                        \
	   : "1" ((USItype)(n1)),                                       \
	     "r" ((USItype)(n0)),                                       \
	     "r" ((USItype)(d)))
#define count_leading_zeros(count, x) \
    __asm__ ("clz %0,%1"                                                \
	     : "=r" ((USItype)(count))                                  \
	     : "r" ((USItype)(x)))
#define COUNT_LEADING_ZEROS_0 32
#endif /* __a29k__ */


#if defined (__alpha) && W_TYPE_SIZE == 64
#define umul_ppmm(ph, pl, m0, m1) \
  do {									\
    UDItype __m0 = (m0), __m1 = (m1);					\
    __asm__ ("umulh %r1,%2,%0"                                          \
	     : "=r" ((UDItype) ph)                                      \
	     : "%rJ" (__m0),                                            \
	       "rI" (__m1));                                            \
    (pl) = __m0 * __m1; 						\
  } while (0)
#define UMUL_TIME 46
#ifndef LONGLONG_STANDALONE
#define udiv_qrnnd(q, r, n1, n0, d) \
  do { UDItype __r;							\
    (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); 			\
    (r) = __r;								\
  } while (0)
extern UDItype __udiv_qrnnd ();
#define UDIV_TIME 220
#endif /* LONGLONG_STANDALONE */
#endif /* __alpha */

/***************************************
 **************  ARM  ******************
 ***************************************/
#if defined (__arm__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("adds        %1, %4, %5
	adc	%0, %2, %3"                                             \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "%r" ((USItype)(ah)),                                      \
	     "rI" ((USItype)(bh)),                                      \
	     "%r" ((USItype)(al)),                                      \
	     "rI" ((USItype)(bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("subs        %1, %4, %5
	sbc	%0, %2, %3"                                             \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "r" ((USItype)(ah)),                                       \
	     "rI" ((USItype)(bh)),                                      \
	     "r" ((USItype)(al)),                                       \
	     "rI" ((USItype)(bl)))
#ifdef __ARM_ARCH_3__
/* SAM This does not work on arm4 */
#define umul_ppmm(xh, xl, a, b) \
  __asm__ ("%@ Inlined umul_ppmm
	mov	%|r0, %2, lsr #16
	mov	%|r2, %3, lsr #16
	bic	%|r1, %2, %|r0, lsl #16
	bic	%|r2, %3, %|r2, lsl #16
	mul	%1, %|r1, %|r2
	mul	%|r2, %|r0, %|r2
	mul	%|r1, %0, %|r1
	mul	%0, %|r0, %0
	adds	%|r1, %|r2, %|r1
	addcs	%0, %0, #65536
	adds	%1, %1, %|r1, lsl #16
	adc	%0, %0, %|r1, lsr #16"                                  \
	   : "=&r" ((USItype)(xh)),                                     \
	     "=r" ((USItype)(xl))                                       \
	   : "r" ((USItype)(a)),                                        \
	     "r" ((USItype)(b))                                         \
	   : "r0", "r1", "r2")
#elif __ARM_ARCH_4__
#define umul_ppmm(xh, xl, a, b) \
  __asm__ ("%@ Inlined umul_ppmm
	umull	%r1, %r0, %r2, %r3" \
		   : "=&r" ((USItype)(xh)), \
		     "=r" ((USItype)(xl)) \
		   : "r" ((USItype)(a)), \
		     "r" ((USItype)(b)) \
		   : "r0", "r1")
#else
#error Untested architecture
#endif
#define UMUL_TIME 20
#define UDIV_TIME 100
#endif /* __arm__ */

/***************************************
 **************  CLIPPER  **************
 ***************************************/
#if defined (__clipper__) && W_TYPE_SIZE == 32
#define umul_ppmm(w1, w0, u, v) \
  ({union {UDItype __ll;						\
	   struct {USItype __l, __h;} __i;				\
	  } __xx;							\
  __asm__ ("mulwux %2,%0"                                               \
	   : "=r" (__xx.__ll)                                           \
	   : "%0" ((USItype)(u)),                                       \
	     "r" ((USItype)(v)));                                       \
  (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
#define smul_ppmm(w1, w0, u, v) \
  ({union {DItype __ll; 						\
	   struct {SItype __l, __h;} __i;				\
	  } __xx;							\
  __asm__ ("mulwx %2,%0"                                                \
	   : "=r" (__xx.__ll)                                           \
	   : "%0" ((SItype)(u)),                                        \
	     "r" ((SItype)(v)));                                        \
  (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
#define __umulsidi3(u, v) \
  ({UDItype __w;							\
    __asm__ ("mulwux %2,%0"                                             \
	     : "=r" (__w)                                               \
	     : "%0" ((USItype)(u)),                                     \
	       "r" ((USItype)(v)));                                     \
    __w; })
#endif /* __clipper__ */


/***************************************
 **************  GMICRO  ***************
 ***************************************/
#if defined (__gmicro__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("add.w %5,%1
	addx %3,%0"                                                     \
	   : "=g" ((USItype)(sh)),                                      \
	     "=&g" ((USItype)(sl))                                      \
	   : "%0" ((USItype)(ah)),                                      \
	     "g" ((USItype)(bh)),                                       \
	     "%1" ((USItype)(al)),                                      \
	     "g" ((USItype)(bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("sub.w %5,%1
	subx %3,%0"                                                     \
	   : "=g" ((USItype)(sh)),                                      \
	     "=&g" ((USItype)(sl))                                      \
	   : "0" ((USItype)(ah)),                                       \
	     "g" ((USItype)(bh)),                                       \
	     "1" ((USItype)(al)),                                       \
	     "g" ((USItype)(bl)))
#define umul_ppmm(ph, pl, m0, m1) \
  __asm__ ("mulx %3,%0,%1"                                              \
	   : "=g" ((USItype)(ph)),                                      \
	     "=r" ((USItype)(pl))                                       \
	   : "%0" ((USItype)(m0)),                                      \
	     "g" ((USItype)(m1)))
#define udiv_qrnnd(q, r, nh, nl, d) \
  __asm__ ("divx %4,%0,%1"                                              \
	   : "=g" ((USItype)(q)),                                       \
	     "=r" ((USItype)(r))                                        \
	   : "1" ((USItype)(nh)),                                       \
	     "0" ((USItype)(nl)),                                       \
	     "g" ((USItype)(d)))
#define count_leading_zeros(count, x) \
  __asm__ ("bsch/1 %1,%0"                                               \
	   : "=g" (count)                                               \
	   : "g" ((USItype)(x)),                                        \
	     "0" ((USItype)0))
#endif


/***************************************
 **************  HPPA  *****************
 ***************************************/
#if defined (__hppa) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("add %4,%5,%1
	addc %2,%3,%0"                                                  \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "%rM" ((USItype)(ah)),                                     \
	     "rM" ((USItype)(bh)),                                      \
	     "%rM" ((USItype)(al)),                                     \
	     "rM" ((USItype)(bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("sub %4,%5,%1
	subb %2,%3,%0"                                                  \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "rM" ((USItype)(ah)),                                      \
	     "rM" ((USItype)(bh)),                                      \
	     "rM" ((USItype)(al)),                                      \
	     "rM" ((USItype)(bl)))
#if defined (_PA_RISC1_1)
#define umul_ppmm(wh, wl, u, v) \
  do {									\
    union {UDItype __ll;						\
	   struct {USItype __h, __l;} __i;				\
	  } __xx;							\
    __asm__ ("xmpyu %1,%2,%0"                                           \
	     : "=*f" (__xx.__ll)                                        \
	     : "*f" ((USItype)(u)),                                     \
	       "*f" ((USItype)(v)));                                    \
    (wh) = __xx.__i.__h;						\
    (wl) = __xx.__i.__l;						\
  } while (0)
#define UMUL_TIME 8
#define UDIV_TIME 60
#else
#define UMUL_TIME 40
#define UDIV_TIME 80
#endif
#ifndef LONGLONG_STANDALONE
#define udiv_qrnnd(q, r, n1, n0, d) \
  do { USItype __r;							\
    (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); 			\
    (r) = __r;								\
  } while (0)
extern USItype __udiv_qrnnd ();
#endif /* LONGLONG_STANDALONE */
#define count_leading_zeros(count, x) \
  do {									\
    USItype __tmp;							\
    __asm__ (								\
       "ldi             1,%0
	extru,= 	%1,15,16,%%r0		; Bits 31..16 zero?
	extru,tr	%1,15,16,%1		; No.  Shift down, skip add.
	ldo		16(%0),%0		; Yes.	Perform add.
	extru,= 	%1,23,8,%%r0		; Bits 15..8 zero?
	extru,tr	%1,23,8,%1		; No.  Shift down, skip add.
	ldo		8(%0),%0		; Yes.	Perform add.
	extru,= 	%1,27,4,%%r0		; Bits 7..4 zero?
	extru,tr	%1,27,4,%1		; No.  Shift down, skip add.
	ldo		4(%0),%0		; Yes.	Perform add.
	extru,= 	%1,29,2,%%r0		; Bits 3..2 zero?
	extru,tr	%1,29,2,%1		; No.  Shift down, skip add.
	ldo		2(%0),%0		; Yes.	Perform add.
	extru		%1,30,1,%1		; Extract bit 1.
	sub		%0,%1,%0		; Subtract it.
	" : "=r" (count), "=r" (__tmp) : "1" (x));                      \
  } while (0)
#endif /* hppa */


/***************************************
 **************  I370  *****************
 ***************************************/
#if (defined (__i370__) || defined (__mvs__)) && W_TYPE_SIZE == 32
#define umul_ppmm(xh, xl, m0, m1) \
  do {									\
    union {UDItype __ll;						\
	   struct {USItype __h, __l;} __i;				\
	  } __xx;							\
    USItype __m0 = (m0), __m1 = (m1);					\
    __asm__ ("mr %0,%3"                                                 \
	     : "=r" (__xx.__i.__h),                                     \
	       "=r" (__xx.__i.__l)                                      \
	     : "%1" (__m0),                                             \
	       "r" (__m1));                                             \
    (xh) = __xx.__i.__h; (xl) = __xx.__i.__l;				\
    (xh) += ((((SItype) __m0 >> 31) & __m1)				\
	     + (((SItype) __m1 >> 31) & __m0)); 			\
  } while (0)
#define smul_ppmm(xh, xl, m0, m1) \
  do {									\
    union {DItype __ll; 						\
	   struct {USItype __h, __l;} __i;				\
	  } __xx;							\
    __asm__ ("mr %0,%3"                                                 \
	     : "=r" (__xx.__i.__h),                                     \
	       "=r" (__xx.__i.__l)                                      \
	     : "%1" (m0),                                               \
	       "r" (m1));                                               \
    (xh) = __xx.__i.__h; (xl) = __xx.__i.__l;				\
  } while (0)
#define sdiv_qrnnd(q, r, n1, n0, d) \
  do {									\
    union {DItype __ll; 						\
	   struct {USItype __h, __l;} __i;				\
	  } __xx;							\
    __xx.__i.__h = n1; __xx.__i.__l = n0;				\
    __asm__ ("dr %0,%2"                                                 \
	     : "=r" (__xx.__ll)                                         \
	     : "0" (__xx.__ll), "r" (d));                               \
    (q) = __xx.__i.__l; (r) = __xx.__i.__h;				\
  } while (0)
#endif


/***************************************
 **************  I386  *****************
 ***************************************/
#if (defined (__i386__) || defined (__i486__)) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("addl %5,%1
	adcl %3,%0"                                                     \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "%0" ((USItype)(ah)),                                      \
	     "g" ((USItype)(bh)),                                       \
	     "%1" ((USItype)(al)),                                      \
	     "g" ((USItype)(bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("subl %5,%1
	sbbl %3,%0"                                                     \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "0" ((USItype)(ah)),                                       \
	     "g" ((USItype)(bh)),                                       \
	     "1" ((USItype)(al)),                                       \
	     "g" ((USItype)(bl)))
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("mull %3"                                                    \
	   : "=a" ((USItype)(w0)),                                      \
	     "=d" ((USItype)(w1))                                       \
	   : "%0" ((USItype)(u)),                                       \
	     "rm" ((USItype)(v)))
#define udiv_qrnnd(q, r, n1, n0, d) \
  __asm__ ("divl %4"                                                    \
	   : "=a" ((USItype)(q)),                                       \
	     "=d" ((USItype)(r))                                        \
	   : "0" ((USItype)(n0)),                                       \
	     "1" ((USItype)(n1)),                                       \
	     "rm" ((USItype)(d)))
#define count_leading_zeros(count, x) \
  do {									\
    USItype __cbtmp;							\
    __asm__ ("bsrl %1,%0"                                               \
	     : "=r" (__cbtmp) : "rm" ((USItype)(x)));                   \
    (count) = __cbtmp ^ 31;						\
  } while (0)
#define count_trailing_zeros(count, x) \
  __asm__ ("bsfl %1,%0" : "=r" (count) : "rm" ((USItype)(x)))
#ifndef UMUL_TIME
#define UMUL_TIME 40
#endif
#ifndef UDIV_TIME
#define UDIV_TIME 40
#endif
#endif /* 80x86 */


/***************************************
 **************  I860  *****************
 ***************************************/
#if defined (__i860__) && W_TYPE_SIZE == 32
#define rshift_rhlc(r,h,l,c) \
  __asm__ ("shr %3,r0,r0\;shrd %1,%2,%0"                                \
	   "=r" (r) : "r" (h), "r" (l), "rn" (c))
#endif /* i860 */

/***************************************
 **************  I960  *****************
 ***************************************/
#if defined (__i960__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("cmpo 1,0\;addc %5,%4,%1\;addc %3,%2,%0"                     \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "%dI" ((USItype)(ah)),                                     \
	     "dI" ((USItype)(bh)),                                      \
	     "%dI" ((USItype)(al)),                                     \
	     "dI" ((USItype)(bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("cmpo 0,0\;subc %5,%4,%1\;subc %3,%2,%0"                     \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "dI" ((USItype)(ah)),                                      \
	     "dI" ((USItype)(bh)),                                      \
	     "dI" ((USItype)(al)),                                      \
	     "dI" ((USItype)(bl)))
#define umul_ppmm(w1, w0, u, v) \
  ({union {UDItype __ll;						\
	   struct {USItype __l, __h;} __i;				\
	  } __xx;							\
  __asm__ ("emul        %2,%1,%0"                                       \
	   : "=d" (__xx.__ll)                                           \
	   : "%dI" ((USItype)(u)),                                      \
	     "dI" ((USItype)(v)));                                      \
  (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
#define __umulsidi3(u, v) \
  ({UDItype __w;							\
    __asm__ ("emul      %2,%1,%0"                                       \
	     : "=d" (__w)                                               \
	     : "%dI" ((USItype)(u)),                                    \
	       "dI" ((USItype)(v)));                                    \
    __w; })
#define udiv_qrnnd(q, r, nh, nl, d) \
  do {									\
    union {UDItype __ll;						\
	   struct {USItype __l, __h;} __i;				\
	  } __nn;							\
    __nn.__i.__h = (nh); __nn.__i.__l = (nl);				\
    __asm__ ("ediv %d,%n,%0"                                            \
	   : "=d" (__rq.__ll)                                           \
	   : "dI" (__nn.__ll),                                          \
	     "dI" ((USItype)(d)));                                      \
    (r) = __rq.__i.__l; (q) = __rq.__i.__h;				\
  } while (0)
#define count_leading_zeros(count, x) \
  do {									\
    USItype __cbtmp;							\
    __asm__ ("scanbit %1,%0"                                            \
	     : "=r" (__cbtmp)                                           \
	     : "r" ((USItype)(x)));                                     \
    (count) = __cbtmp ^ 31;						\
  } while (0)
#define COUNT_LEADING_ZEROS_0 (-32) /* sic */
#if defined (__i960mx)		/* what is the proper symbol to test??? */
#define rshift_rhlc(r,h,l,c) \
  do {									\
    union {UDItype __ll;						\
	   struct {USItype __l, __h;} __i;				\
	  } __nn;							\
    __nn.__i.__h = (h); __nn.__i.__l = (l);				\
    __asm__ ("shre %2,%1,%0"                                            \
	     : "=d" (r) : "dI" (__nn.__ll), "dI" (c));                  \
  }
#endif /* i960mx */
#endif /* i960 */


/***************************************
 **************  68000	****************
 ***************************************/
#if (defined (__mc68000__) || defined (__mc68020__) || defined (__NeXT__) || defined(mc68020)) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("add%.l %5,%1
	addx%.l %3,%0"                                                  \
	   : "=d" ((USItype)(sh)),                                      \
	     "=&d" ((USItype)(sl))                                      \
	   : "%0" ((USItype)(ah)),                                      \
	     "d" ((USItype)(bh)),                                       \
	     "%1" ((USItype)(al)),                                      \
	     "g" ((USItype)(bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("sub%.l %5,%1
	subx%.l %3,%0"                                                  \
	   : "=d" ((USItype)(sh)),                                      \
	     "=&d" ((USItype)(sl))                                      \
	   : "0" ((USItype)(ah)),                                       \
	     "d" ((USItype)(bh)),                                       \
	     "1" ((USItype)(al)),                                       \
	     "g" ((USItype)(bl)))
#if (defined (__mc68020__) || defined (__NeXT__) || defined(mc68020))
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("mulu%.l %3,%1:%0"                                           \
	   : "=d" ((USItype)(w0)),                                      \
	     "=d" ((USItype)(w1))                                       \
	   : "%0" ((USItype)(u)),                                       \
	     "dmi" ((USItype)(v)))
#define UMUL_TIME 45
#define udiv_qrnnd(q, r, n1, n0, d) \
  __asm__ ("divu%.l %4,%1:%0"                                           \
	   : "=d" ((USItype)(q)),                                       \
	     "=d" ((USItype)(r))                                        \
	   : "0" ((USItype)(n0)),                                       \
	     "1" ((USItype)(n1)),                                       \
	     "dmi" ((USItype)(d)))
#define UDIV_TIME 90
#define sdiv_qrnnd(q, r, n1, n0, d) \
  __asm__ ("divs%.l %4,%1:%0"                                           \
	   : "=d" ((USItype)(q)),                                       \
	     "=d" ((USItype)(r))                                        \
	   : "0" ((USItype)(n0)),                                       \
	     "1" ((USItype)(n1)),                                       \
	     "dmi" ((USItype)(d)))
#define count_leading_zeros(count, x) \
  __asm__ ("bfffo %1{%b2:%b2},%0"                                       \
	   : "=d" ((USItype)(count))                                    \
	   : "od" ((USItype)(x)), "n" (0))
#define COUNT_LEADING_ZEROS_0 32
#else /* not mc68020 */
#define umul_ppmm(xh, xl, a, b) \
  do { USItype __umul_tmp1, __umul_tmp2;				\
	__asm__ ("| Inlined umul_ppmm
	move%.l %5,%3
	move%.l %2,%0
	move%.w %3,%1
	swap	%3
	swap	%0
	mulu	%2,%1
	mulu	%3,%0
	mulu	%2,%3
	swap	%2
	mulu	%5,%2
	add%.l	%3,%2
	jcc	1f
	add%.l	%#0x10000,%0
1:	move%.l %2,%3
	clr%.w	%2
	swap	%2
	swap	%3
	clr%.w	%3
	add%.l	%3,%1
	addx%.l %2,%0
	| End inlined umul_ppmm"                                        \
	      : "=&d" ((USItype)(xh)), "=&d" ((USItype)(xl)),           \
		"=d" (__umul_tmp1), "=&d" (__umul_tmp2)                 \
	      : "%2" ((USItype)(a)), "d" ((USItype)(b)));               \
  } while (0)
#define UMUL_TIME 100
#define UDIV_TIME 400
#endif /* not mc68020 */
#endif /* mc68000 */


/***************************************
 **************  88000	****************
 ***************************************/
#if defined (__m88000__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("addu.co %1,%r4,%r5
	addu.ci %0,%r2,%r3"                                             \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "%rJ" ((USItype)(ah)),                                     \
	     "rJ" ((USItype)(bh)),                                      \
	     "%rJ" ((USItype)(al)),                                     \
	     "rJ" ((USItype)(bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("subu.co %1,%r4,%r5
	subu.ci %0,%r2,%r3"                                             \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "rJ" ((USItype)(ah)),                                      \
	     "rJ" ((USItype)(bh)),                                      \
	     "rJ" ((USItype)(al)),                                      \
	     "rJ" ((USItype)(bl)))
#define count_leading_zeros(count, x) \
  do {									\
    USItype __cbtmp;							\
    __asm__ ("ff1 %0,%1"                                                \
	     : "=r" (__cbtmp)                                           \
	     : "r" ((USItype)(x)));                                     \
    (count) = __cbtmp ^ 31;						\
  } while (0)
#define COUNT_LEADING_ZEROS_0 63 /* sic */
#if defined (__m88110__)
#define umul_ppmm(wh, wl, u, v) \
  do {									\
    union {UDItype __ll;						\
	   struct {USItype __h, __l;} __i;				\
	  } __x;							\
    __asm__ ("mulu.d %0,%1,%2" : "=r" (__x.__ll) : "r" (u), "r" (v));   \
    (wh) = __x.__i.__h; 						\
    (wl) = __x.__i.__l; 						\
  } while (0)
#define udiv_qrnnd(q, r, n1, n0, d) \
  ({union {UDItype __ll;						\
	   struct {USItype __h, __l;} __i;				\
	  } __x, __q;							\
  __x.__i.__h = (n1); __x.__i.__l = (n0);				\
  __asm__ ("divu.d %0,%1,%2"                                            \
	   : "=r" (__q.__ll) : "r" (__x.__ll), "r" (d));                \
  (r) = (n0) - __q.__l * (d); (q) = __q.__l; })
#define UMUL_TIME 5
#define UDIV_TIME 25
#else
#define UMUL_TIME 17
#define UDIV_TIME 150
#endif /* __m88110__ */
#endif /* __m88000__ */


/***************************************
 **************  MIPS  *****************
 ***************************************/
#if defined (__mips__) && W_TYPE_SIZE == 32
#if __GNUC__ > 2 || __GNUC_MINOR__ >= 7
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("multu %2,%3"                                                \
	   : "=l" ((USItype)(w0)),                                      \
	     "=h" ((USItype)(w1))                                       \
	   : "d" ((USItype)(u)),                                        \
	     "d" ((USItype)(v)))
#else
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("multu %2,%3
	mflo %0
	mfhi %1"                                                        \
	   : "=d" ((USItype)(w0)),                                      \
	     "=d" ((USItype)(w1))                                       \
	   : "d" ((USItype)(u)),                                        \
	     "d" ((USItype)(v)))
#endif
#define UMUL_TIME 10
#define UDIV_TIME 100
#endif /* __mips__ */

/***************************************
 **************  MIPS/64  **************
 ***************************************/
#if (defined (__mips) && __mips >= 3) && W_TYPE_SIZE == 64
#if __GNUC__ > 2 || __GNUC_MINOR__ >= 7
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("dmultu %2,%3"                                               \
	   : "=l" ((UDItype)(w0)),                                      \
	     "=h" ((UDItype)(w1))                                       \
	   : "d" ((UDItype)(u)),                                        \
	     "d" ((UDItype)(v)))
#else
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("dmultu %2,%3
	mflo %0
	mfhi %1"                                                        \
	   : "=d" ((UDItype)(w0)),                                      \
	     "=d" ((UDItype)(w1))                                       \
	   : "d" ((UDItype)(u)),                                        \
	     "d" ((UDItype)(v)))
#endif
#define UMUL_TIME 20
#define UDIV_TIME 140
#endif /* __mips__ */


/***************************************
 **************  32000	****************
 ***************************************/
#if defined (__ns32000__) && W_TYPE_SIZE == 32
#define umul_ppmm(w1, w0, u, v) \
  ({union {UDItype __ll;						\
	   struct {USItype __l, __h;} __i;				\
	  } __xx;							\
  __asm__ ("meid %2,%0"                                                 \
	   : "=g" (__xx.__ll)                                           \
	   : "%0" ((USItype)(u)),                                       \
	     "g" ((USItype)(v)));                                       \
  (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
#define __umulsidi3(u, v) \
  ({UDItype __w;							\
    __asm__ ("meid %2,%0"                                               \
	     : "=g" (__w)                                               \
	     : "%0" ((USItype)(u)),                                     \
	       "g" ((USItype)(v)));                                     \
    __w; })
#define udiv_qrnnd(q, r, n1, n0, d) \
  ({union {UDItype __ll;						\
	   struct {USItype __l, __h;} __i;				\
	  } __xx;							\
  __xx.__i.__h = (n1); __xx.__i.__l = (n0);				\
  __asm__ ("deid %2,%0"                                                 \
	   : "=g" (__xx.__ll)                                           \
	   : "0" (__xx.__ll),                                           \
	     "g" ((USItype)(d)));                                       \
  (r) = __xx.__i.__l; (q) = __xx.__i.__h; })
#define count_trailing_zeros(count,x) \
  do {
    __asm__ ("ffsd      %2,%0"                                          \
	     : "=r" ((USItype) (count))                                 \
	     : "0" ((USItype) 0),                                       \
	       "r" ((USItype) (x)));                                    \
  } while (0)
#endif /* __ns32000__ */


/***************************************
 **************  PPC  ******************
 ***************************************/
#if (defined (_ARCH_PPC) || defined (_IBMR2)) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  do {									\
    if (__builtin_constant_p (bh) && (bh) == 0) 			\
      __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{aze|addze} %0,%2"           \
	     : "=r" ((USItype)(sh)),                                    \
	       "=&r" ((USItype)(sl))                                    \
	     : "%r" ((USItype)(ah)),                                    \
	       "%r" ((USItype)(al)),                                    \
	       "rI" ((USItype)(bl)));                                   \
    else if (__builtin_constant_p (bh) && (bh) ==~(USItype) 0)		\
      __asm__ ("{a%I4|add%I4c} %1,%3,%4\n\t{ame|addme} %0,%2"           \
	     : "=r" ((USItype)(sh)),                                    \
	       "=&r" ((USItype)(sl))                                    \
	     : "%r" ((USItype)(ah)),                                    \
	       "%r" ((USItype)(al)),                                    \
	       "rI" ((USItype)(bl)));                                   \
    else								\
      __asm__ ("{a%I5|add%I5c} %1,%4,%5\n\t{ae|adde} %0,%2,%3"          \
	     : "=r" ((USItype)(sh)),                                    \
	       "=&r" ((USItype)(sl))                                    \
	     : "%r" ((USItype)(ah)),                                    \
	       "r" ((USItype)(bh)),                                     \
	       "%r" ((USItype)(al)),                                    \
	       "rI" ((USItype)(bl)));                                   \
  } while (0)
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  do {									\
    if (__builtin_constant_p (ah) && (ah) == 0) 			\
      __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfze|subfze} %0,%2"       \
	       : "=r" ((USItype)(sh)),                                  \
		 "=&r" ((USItype)(sl))                                  \
	       : "r" ((USItype)(bh)),                                   \
		 "rI" ((USItype)(al)),                                  \
		 "r" ((USItype)(bl)));                                  \
    else if (__builtin_constant_p (ah) && (ah) ==~(USItype) 0)		\
      __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{sfme|subfme} %0,%2"       \
	       : "=r" ((USItype)(sh)),                                  \
		 "=&r" ((USItype)(sl))                                  \
	       : "r" ((USItype)(bh)),                                   \
		 "rI" ((USItype)(al)),                                  \
		 "r" ((USItype)(bl)));                                  \
    else if (__builtin_constant_p (bh) && (bh) == 0)			\
      __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{ame|addme} %0,%2"         \
	       : "=r" ((USItype)(sh)),                                  \
		 "=&r" ((USItype)(sl))                                  \
	       : "r" ((USItype)(ah)),                                   \
		 "rI" ((USItype)(al)),                                  \
		 "r" ((USItype)(bl)));                                  \
    else if (__builtin_constant_p (bh) && (bh) ==~(USItype) 0)		\
      __asm__ ("{sf%I3|subf%I3c} %1,%4,%3\n\t{aze|addze} %0,%2"         \
	       : "=r" ((USItype)(sh)),                                  \
		 "=&r" ((USItype)(sl))                                  \
	       : "r" ((USItype)(ah)),                                   \
		 "rI" ((USItype)(al)),                                  \
		 "r" ((USItype)(bl)));                                  \
    else								\
      __asm__ ("{sf%I4|subf%I4c} %1,%5,%4\n\t{sfe|subfe} %0,%3,%2"      \
	       : "=r" ((USItype)(sh)),                                  \
		 "=&r" ((USItype)(sl))                                  \
	       : "r" ((USItype)(ah)),                                   \
		 "r" ((USItype)(bh)),                                   \
		 "rI" ((USItype)(al)),                                  \
		 "r" ((USItype)(bl)));                                  \
  } while (0)
#define count_leading_zeros(count, x) \
  __asm__ ("{cntlz|cntlzw} %0,%1"                                       \
	   : "=r" ((USItype)(count))                                    \
	   : "r" ((USItype)(x)))
#define COUNT_LEADING_ZEROS_0 32
#if defined (_ARCH_PPC)
#define umul_ppmm(ph, pl, m0, m1) \
  do {									\
    USItype __m0 = (m0), __m1 = (m1);					\
    __asm__ ("mulhwu %0,%1,%2"                                          \
	     : "=r" ((USItype) ph)                                      \
	     : "%r" (__m0),                                             \
	       "r" (__m1));                                             \
    (pl) = __m0 * __m1; 						\
  } while (0)
#define UMUL_TIME 15
#define smul_ppmm(ph, pl, m0, m1) \
  do {									\
    SItype __m0 = (m0), __m1 = (m1);					\
    __asm__ ("mulhw %0,%1,%2"                                           \
	     : "=r" ((SItype) ph)                                       \
	     : "%r" (__m0),                                             \
	       "r" (__m1));                                             \
    (pl) = __m0 * __m1; 						\
  } while (0)
#define SMUL_TIME 14
#define UDIV_TIME 120
#else
#define umul_ppmm(xh, xl, m0, m1) \
  do {									\
    USItype __m0 = (m0), __m1 = (m1);					\
    __asm__ ("mul %0,%2,%3"                                             \
	     : "=r" ((USItype)(xh)),                                    \
	       "=q" ((USItype)(xl))                                     \
	     : "r" (__m0),                                              \
	       "r" (__m1));                                             \
    (xh) += ((((SItype) __m0 >> 31) & __m1)				\
	     + (((SItype) __m1 >> 31) & __m0)); 			\
  } while (0)
#define UMUL_TIME 8
#define smul_ppmm(xh, xl, m0, m1) \
  __asm__ ("mul %0,%2,%3"                                               \
	   : "=r" ((SItype)(xh)),                                       \
	     "=q" ((SItype)(xl))                                        \
	   : "r" (m0),                                                  \
	     "r" (m1))
#define SMUL_TIME 4
#define sdiv_qrnnd(q, r, nh, nl, d) \
  __asm__ ("div %0,%2,%4"                                               \
	   : "=r" ((SItype)(q)), "=q" ((SItype)(r))                     \
	   : "r" ((SItype)(nh)), "1" ((SItype)(nl)), "r" ((SItype)(d)))
#define UDIV_TIME 100
#endif
#endif /* Power architecture variants.	*/


/***************************************
 **************  PYR  ******************
 ***************************************/
#if defined (__pyr__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("addw        %5,%1
	addwc	%3,%0"                                                  \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "%0" ((USItype)(ah)),                                      \
	     "g" ((USItype)(bh)),                                       \
	     "%1" ((USItype)(al)),                                      \
	     "g" ((USItype)(bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("subw        %5,%1
	subwb	%3,%0"                                                  \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "0" ((USItype)(ah)),                                       \
	     "g" ((USItype)(bh)),                                       \
	     "1" ((USItype)(al)),                                       \
	     "g" ((USItype)(bl)))
/* This insn works on Pyramids with AP, XP, or MI CPUs, but not with SP.  */
#define umul_ppmm(w1, w0, u, v) \
  ({union {UDItype __ll;						\
	   struct {USItype __h, __l;} __i;				\
	  } __xx;							\
  __asm__ ("movw %1,%R0
	uemul %2,%0"                                                    \
	   : "=&r" (__xx.__ll)                                          \
	   : "g" ((USItype) (u)),                                       \
	     "g" ((USItype)(v)));                                       \
  (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
#endif /* __pyr__ */


/***************************************
 **************  RT/ROMP  **************
 ***************************************/
#if defined (__ibm032__) /* RT/ROMP */	&& W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("a %1,%5
	ae %0,%3"                                                       \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "%0" ((USItype)(ah)),                                      \
	     "r" ((USItype)(bh)),                                       \
	     "%1" ((USItype)(al)),                                      \
	     "r" ((USItype)(bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("s %1,%5
	se %0,%3"                                                       \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "0" ((USItype)(ah)),                                       \
	     "r" ((USItype)(bh)),                                       \
	     "1" ((USItype)(al)),                                       \
	     "r" ((USItype)(bl)))
#define umul_ppmm(ph, pl, m0, m1) \
  do {									\
    USItype __m0 = (m0), __m1 = (m1);					\
    __asm__ (								\
       "s       r2,r2
	mts	r10,%2
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	m	r2,%3
	cas	%0,r2,r0
	mfs	r10,%1"                                                 \
	     : "=r" ((USItype)(ph)),                                    \
	       "=r" ((USItype)(pl))                                     \
	     : "%r" (__m0),                                             \
		"r" (__m1)                                              \
	     : "r2");                                                   \
    (ph) += ((((SItype) __m0 >> 31) & __m1)				\
	     + (((SItype) __m1 >> 31) & __m0)); 			\
  } while (0)
#define UMUL_TIME 20
#define UDIV_TIME 200
#define count_leading_zeros(count, x) \
  do {									\
    if ((x) >= 0x10000) 						\
      __asm__ ("clz     %0,%1"                                          \
	       : "=r" ((USItype)(count))                                \
	       : "r" ((USItype)(x) >> 16));                             \
    else								\
      { 								\
	__asm__ ("clz   %0,%1"                                          \
		 : "=r" ((USItype)(count))                              \
		 : "r" ((USItype)(x)));                                 \
	(count) += 16;							\
      } 								\
  } while (0)
#endif /* RT/ROMP */


/***************************************
 **************  SH2  ******************
 ***************************************/
#if defined (__sh2__) && W_TYPE_SIZE == 32
#define umul_ppmm(w1, w0, u, v) \
  __asm__ (								\
       "dmulu.l %2,%3
	sts	macl,%1
	sts	mach,%0"                                                \
	   : "=r" ((USItype)(w1)),                                      \
	     "=r" ((USItype)(w0))                                       \
	   : "r" ((USItype)(u)),                                        \
	     "r" ((USItype)(v))                                         \
	   : "macl", "mach")
#define UMUL_TIME 5
#endif

/***************************************
 **************  SPARC	****************
 ***************************************/
#if defined (__sparc__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("addcc %r4,%5,%1
	addx %r2,%3,%0"                                                 \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "%rJ" ((USItype)(ah)),                                     \
	     "rI" ((USItype)(bh)),                                      \
	     "%rJ" ((USItype)(al)),                                     \
	     "rI" ((USItype)(bl))                                       \
	   __CLOBBER_CC)
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("subcc %r4,%5,%1
	subx %r2,%3,%0"                                                 \
	   : "=r" ((USItype)(sh)),                                      \
	     "=&r" ((USItype)(sl))                                      \
	   : "rJ" ((USItype)(ah)),                                      \
	     "rI" ((USItype)(bh)),                                      \
	     "rJ" ((USItype)(al)),                                      \
	     "rI" ((USItype)(bl))                                       \
	   __CLOBBER_CC)
#if defined (__sparc_v8__)
/* Don't match immediate range because, 1) it is not often useful,
   2) the 'I' flag thinks of the range as a 13 bit signed interval,
   while we want to match a 13 bit interval, sign extended to 32 bits,
   but INTERPRETED AS UNSIGNED.  */
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("umul %2,%3,%1;rd %%y,%0"                                    \
	   : "=r" ((USItype)(w1)),                                      \
	     "=r" ((USItype)(w0))                                       \
	   : "r" ((USItype)(u)),                                        \
	     "r" ((USItype)(v)))
#define UMUL_TIME 5
#ifndef SUPERSPARC	/* SuperSPARC's udiv only handles 53 bit dividends */
#define udiv_qrnnd(q, r, n1, n0, d) \
  do {									\
    USItype __q;							\
    __asm__ ("mov %1,%%y;nop;nop;nop;udiv %2,%3,%0"                     \
	     : "=r" ((USItype)(__q))                                    \
	     : "r" ((USItype)(n1)),                                     \
	       "r" ((USItype)(n0)),                                     \
	       "r" ((USItype)(d)));                                     \
    (r) = (n0) - __q * (d);						\
    (q) = __q;								\
  } while (0)
#define UDIV_TIME 25
#endif /* SUPERSPARC */
#else /* ! __sparc_v8__ */
#if defined (__sparclite__)
/* This has hardware multiply but not divide.  It also has two additional
   instructions scan (ffs from high bit) and divscc.  */
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("umul %2,%3,%1;rd %%y,%0"                                    \
	   : "=r" ((USItype)(w1)),                                      \
	     "=r" ((USItype)(w0))                                       \
	   : "r" ((USItype)(u)),                                        \
	     "r" ((USItype)(v)))
#define UMUL_TIME 5
#define udiv_qrnnd(q, r, n1, n0, d) \
  __asm__ ("! Inlined udiv_qrnnd
	wr	%%g0,%2,%%y	! Not a delayed write for sparclite
	tst	%%g0
	divscc	%3,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%%g1
	divscc	%%g1,%4,%0
	rd	%%y,%1
	bl,a 1f
	add	%1,%4,%1
1:	! End of inline udiv_qrnnd"                                     \
	   : "=r" ((USItype)(q)),                                       \
	     "=r" ((USItype)(r))                                        \
	   : "r" ((USItype)(n1)),                                       \
	     "r" ((USItype)(n0)),                                       \
	     "rI" ((USItype)(d))                                        \
	   : "%g1" __AND_CLOBBER_CC)
#define UDIV_TIME 37
#define count_leading_zeros(count, x) \
  __asm__ ("scan %1,0,%0"                                               \
	   : "=r" ((USItype)(x))                                        \
	   : "r" ((USItype)(count)))
/* Early sparclites return 63 for an argument of 0, but they warn that future
   implementations might change this.  Therefore, leave COUNT_LEADING_ZEROS_0
   undefined.  */
#endif /* __sparclite__ */
#endif /* __sparc_v8__ */
/* Default to sparc v7 versions of umul_ppmm and udiv_qrnnd.  */
#ifndef umul_ppmm
#define umul_ppmm(w1, w0, u, v) \
  __asm__ ("! Inlined umul_ppmm
	wr	%%g0,%2,%%y	! SPARC has 0-3 delay insn after a wr
	sra	%3,31,%%g2	! Don't move this insn
	and	%2,%%g2,%%g2	! Don't move this insn
	andcc	%%g0,0,%%g1	! Don't move this insn
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,%3,%%g1
	mulscc	%%g1,0,%%g1
	add	%%g1,%%g2,%0
	rd	%%y,%1"                                                 \
	   : "=r" ((USItype)(w1)),                                      \
	     "=r" ((USItype)(w0))                                       \
	   : "%rI" ((USItype)(u)),                                      \
	     "r" ((USItype)(v))                                         \
	   : "%g1", "%g2" __AND_CLOBBER_CC)
#define UMUL_TIME 39		/* 39 instructions */
#endif
#ifndef udiv_qrnnd
#ifndef LONGLONG_STANDALONE
#define udiv_qrnnd(q, r, n1, n0, d) \
  do { USItype __r;							\
    (q) = __udiv_qrnnd (&__r, (n1), (n0), (d)); 			\
    (r) = __r;								\
  } while (0)
extern USItype __udiv_qrnnd ();
#define UDIV_TIME 140
#endif /* LONGLONG_STANDALONE */
#endif /* udiv_qrnnd */
#endif /* __sparc__ */


/***************************************
 **************  VAX  ******************
 ***************************************/
#if defined (__vax__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("addl2 %5,%1
	adwc %3,%0"                                                     \
	   : "=g" ((USItype)(sh)),                                      \
	     "=&g" ((USItype)(sl))                                      \
	   : "%0" ((USItype)(ah)),                                      \
	     "g" ((USItype)(bh)),                                       \
	     "%1" ((USItype)(al)),                                      \
	     "g" ((USItype)(bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("subl2 %5,%1
	sbwc %3,%0"                                                     \
	   : "=g" ((USItype)(sh)),                                      \
	     "=&g" ((USItype)(sl))                                      \
	   : "0" ((USItype)(ah)),                                       \
	     "g" ((USItype)(bh)),                                       \
	     "1" ((USItype)(al)),                                       \
	     "g" ((USItype)(bl)))
#define umul_ppmm(xh, xl, m0, m1) \
  do {									\
    union {UDItype __ll;						\
	   struct {USItype __l, __h;} __i;				\
	  } __xx;							\
    USItype __m0 = (m0), __m1 = (m1);					\
    __asm__ ("emul %1,%2,$0,%0"                                         \
	     : "=g" (__xx.__ll)                                         \
	     : "g" (__m0),                                              \
	       "g" (__m1));                                             \
    (xh) = __xx.__i.__h; (xl) = __xx.__i.__l;				\
    (xh) += ((((SItype) __m0 >> 31) & __m1)				\
	     + (((SItype) __m1 >> 31) & __m0)); 			\
  } while (0)
#define sdiv_qrnnd(q, r, n1, n0, d) \
  do {									\
    union {DItype __ll; 						\
	   struct {SItype __l, __h;} __i;				\
	  } __xx;							\
    __xx.__i.__h = n1; __xx.__i.__l = n0;				\
    __asm__ ("ediv %3,%2,%0,%1"                                         \
	     : "=g" (q), "=g" (r)                                       \
	     : "g" (__xx.__ll), "g" (d));                               \
  } while (0)
#endif /* __vax__ */


/***************************************
 **************  Z8000	****************
 ***************************************/
#if defined (__z8000__) && W_TYPE_SIZE == 16
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  __asm__ ("add %H1,%H5\n\tadc  %H0,%H3"                                \
	   : "=r" ((unsigned int)(sh)),                                 \
	     "=&r" ((unsigned int)(sl))                                 \
	   : "%0" ((unsigned int)(ah)),                                 \
	     "r" ((unsigned int)(bh)),                                  \
	     "%1" ((unsigned int)(al)),                                 \
	     "rQR" ((unsigned int)(bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  __asm__ ("sub %H1,%H5\n\tsbc  %H0,%H3"                                \
	   : "=r" ((unsigned int)(sh)),                                 \
	     "=&r" ((unsigned int)(sl))                                 \
	   : "0" ((unsigned int)(ah)),                                  \
	     "r" ((unsigned int)(bh)),                                  \
	     "1" ((unsigned int)(al)),                                  \
	     "rQR" ((unsigned int)(bl)))
#define umul_ppmm(xh, xl, m0, m1) \
  do {									\
    union {long int __ll;						\
	   struct {unsigned int __h, __l;} __i; 			\
	  } __xx;							\
    unsigned int __m0 = (m0), __m1 = (m1);				\
    __asm__ ("mult      %S0,%H3"                                        \
	     : "=r" (__xx.__i.__h),                                     \
	       "=r" (__xx.__i.__l)                                      \
	     : "%1" (__m0),                                             \
	       "rQR" (__m1));                                           \
    (xh) = __xx.__i.__h; (xl) = __xx.__i.__l;				\
    (xh) += ((((signed int) __m0 >> 15) & __m1) 			\
	     + (((signed int) __m1 >> 15) & __m0));			\
  } while (0)
#endif /* __z8000__ */

#endif /* __GNUC__ */


/***************************************
 ***********  Generic Versions	********
 ***************************************/
#if !defined (umul_ppmm) && defined (__umulsidi3)
#define umul_ppmm(ph, pl, m0, m1) \
  {									\
    UDWtype __ll = __umulsidi3 (m0, m1);				\
    ph = (UWtype) (__ll >> W_TYPE_SIZE);				\
    pl = (UWtype) __ll; 						\
  }
#endif

#if !defined (__umulsidi3)
#define __umulsidi3(u, v) \
  ({UWtype __hi, __lo;							\
    umul_ppmm (__hi, __lo, u, v);					\
    ((UDWtype) __hi << W_TYPE_SIZE) | __lo; })
#endif

/* If this machine has no inline assembler, use C macros.  */

#if !defined (add_ssaaaa)
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
  do {									\
    UWtype __x; 							\
    __x = (al) + (bl);							\
    (sh) = (ah) + (bh) + (__x < (al));					\
    (sl) = __x; 							\
  } while (0)
#endif

#if !defined (sub_ddmmss)
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
  do {									\
    UWtype __x; 							\
    __x = (al) - (bl);							\
    (sh) = (ah) - (bh) - (__x > (al));					\
    (sl) = __x; 							\
  } while (0)
#endif

#if !defined (umul_ppmm)
#define umul_ppmm(w1, w0, u, v) 					\
  do {									\
    UWtype __x0, __x1, __x2, __x3;					\
    UHWtype __ul, __vl, __uh, __vh;					\
    UWtype __u = (u), __v = (v);					\
									\
    __ul = __ll_lowpart (__u);						\
    __uh = __ll_highpart (__u); 					\
    __vl = __ll_lowpart (__v);						\
    __vh = __ll_highpart (__v); 					\
									\
    __x0 = (UWtype) __ul * __vl;					\
    __x1 = (UWtype) __ul * __vh;					\
    __x2 = (UWtype) __uh * __vl;					\
    __x3 = (UWtype) __uh * __vh;					\
									\
    __x1 += __ll_highpart (__x0);/* this can't give carry */            \
    __x1 += __x2;		/* but this indeed can */		\
    if (__x1 < __x2)		/* did we get it? */			\
      __x3 += __ll_B;		/* yes, add it in the proper pos. */	\
									\
    (w1) = __x3 + __ll_highpart (__x1); 				\
    (w0) = (__ll_lowpart (__x1) << W_TYPE_SIZE/2) + __ll_lowpart (__x0);\
  } while (0)
#endif

#if !defined (umul_ppmm)
#define smul_ppmm(w1, w0, u, v) 					\
  do {									\
    UWtype __w1;							\
    UWtype __m0 = (u), __m1 = (v);					\
    umul_ppmm (__w1, w0, __m0, __m1);					\
    (w1) = __w1 - (-(__m0 >> (W_TYPE_SIZE - 1)) & __m1) 		\
		- (-(__m1 >> (W_TYPE_SIZE - 1)) & __m0);		\
  } while (0)
#endif

/* Define this unconditionally, so it can be used for debugging.  */
#define __udiv_qrnnd_c(q, r, n1, n0, d) \
  do {									\
    UWtype __d1, __d0, __q1, __q0, __r1, __r0, __m;			\
    __d1 = __ll_highpart (d);						\
    __d0 = __ll_lowpart (d);						\
									\
    __r1 = (n1) % __d1; 						\
    __q1 = (n1) / __d1; 						\
    __m = (UWtype) __q1 * __d0; 					\
    __r1 = __r1 * __ll_B | __ll_highpart (n0);				\
    if (__r1 < __m)							\
      { 								\
	__q1--, __r1 += (d);						\
	if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */\
	  if (__r1 < __m)						\
	    __q1--, __r1 += (d);					\
      } 								\
    __r1 -= __m;							\
									\
    __r0 = __r1 % __d1; 						\
    __q0 = __r1 / __d1; 						\
    __m = (UWtype) __q0 * __d0; 					\
    __r0 = __r0 * __ll_B | __ll_lowpart (n0);				\
    if (__r0 < __m)							\
      { 								\
	__q0--, __r0 += (d);						\
	if (__r0 >= (d))						\
	  if (__r0 < __m)						\
	    __q0--, __r0 += (d);					\
      } 								\
    __r0 -= __m;							\
									\
    (q) = (UWtype) __q1 * __ll_B | __q0;				\
    (r) = __r0; 							\
  } while (0)

/* If the processor has no udiv_qrnnd but sdiv_qrnnd, go through
   __udiv_w_sdiv (defined in libgcc or elsewhere).  */
#if !defined (udiv_qrnnd) && defined (sdiv_qrnnd)
#define udiv_qrnnd(q, r, nh, nl, d) \
  do {									\
    UWtype __r; 							\
    (q) = __MPN(udiv_w_sdiv) (&__r, nh, nl, d); 			\
    (r) = __r;								\
  } while (0)
#endif

/* If udiv_qrnnd was not defined for this processor, use __udiv_qrnnd_c.  */
#if !defined (udiv_qrnnd)
#define UDIV_NEEDS_NORMALIZATION 1
#define udiv_qrnnd __udiv_qrnnd_c
#endif

#if !defined (count_leading_zeros)
extern
#ifdef __STDC__
const
#endif
unsigned char __clz_tab[];
#define MPI_INTERNAL_NEED_CLZ_TAB 1
#define count_leading_zeros(count, x) \
  do {									\
    UWtype __xr = (x);							\
    UWtype __a; 							\
									\
    if (W_TYPE_SIZE <= 32)						\
      { 								\
	__a = __xr < ((UWtype) 1 << 2*__BITS4)				\
	  ? (__xr < ((UWtype) 1 << __BITS4) ? 0 : __BITS4)		\
	  : (__xr < ((UWtype) 1 << 3*__BITS4) ?  2*__BITS4 : 3*__BITS4);\
      } 								\
    else								\
      { 								\
	for (__a = W_TYPE_SIZE - 8; __a > 0; __a -= 8)			\
	  if (((__xr >> __a) & 0xff) != 0)				\
	    break;							\
      } 								\
									\
    (count) = W_TYPE_SIZE - (__clz_tab[__xr >> __a] + __a);		\
  } while (0)
/* This version gives a well-defined value for zero. */
#define COUNT_LEADING_ZEROS_0 W_TYPE_SIZE
#endif

#if !defined (count_trailing_zeros)
/* Define count_trailing_zeros using count_leading_zeros.  The latter might be
   defined in asm, but if it is not, the C version above is good enough.  */
#define count_trailing_zeros(count, x) \
  do {									\
    UWtype __ctz_x = (x);						\
    UWtype __ctz_c;							\
    count_leading_zeros (__ctz_c, __ctz_x & -__ctz_x);			\
    (count) = W_TYPE_SIZE - 1 - __ctz_c;				\
  } while (0)
#endif

#ifndef UDIV_NEEDS_NORMALIZATION
#define UDIV_NEEDS_NORMALIZATION 0
#endif